code: def pow(x, y):  # type: ignore  # noqa: A001
      z = np.power(x, y).astype(x.dtype)
      return z
  
file_path: onnx/onnx/backend/test/case/node/pow.py
imports: import numpy
  import onnx
  from onnx.backend.test.case.base import Base
  from onnx.backend.test.case.node import expect
label_desc: Use image node_id 1 for calling a global function with example usage: pow(x, y) and returns: z